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Why Your Tire Pressure Light Is Still On (Even Though It Warmed Up In Ohio Yesterday)

  • Writer: Harry Tepe
    Harry Tepe
  • 3 days ago
  • 9 min read
Car interior view through a wet windshield showing a blurred street at dawn. Dashboard displays 42 MPH, with tire pressure warning.

Seeing your tire pressure light still on after warmer weather in Ohio can be confusing. Tire Pressure Light Fluctuations are often caused by sudden temperature changes, even if it feels warm outside.


This blog will explain why this happens and what you can do to fix it. Keep reading for simple tips to handle this common issue!


Key Takeaways

  • Tire pressure changes with temperature. A 10°F drop reduces tire pressure by 1–2 PSI, common in Ohio's cold mornings and sudden weather shifts.

  • The TPMS warns when tire pressure falls 25% below the recommended level or if sensors malfunction, like dead batteries or damage from rough roads.

  • Cold air contracts, lowering tire pressure in winter, while summer heat expands air, raising it. Both can confuse the TPMS light if unchecked.

  • Regularly check tires using a manual gauge during seasonal shifts to match car manufacturer's PSI levels and avoid uneven wear or fuel inefficiency.

  • Seek professional help for persistent TPMS warnings caused by faulty sensors or hidden tire damage to ensure safe driving conditions year-round in places like Ohio and Indiana.


A detailed car tire with visible structure is set against a dark background. The text "TPMS Sensor Active" glows orange, adding emphasis.

What Is a Tire Pressure Monitoring System (TPMS)?

A Tire Pressure Monitoring System (TPMS) checks the air pressure in your tires. It warns you when the pressure drops too low or becomes unsafe for driving.



How TPMS Works

The Tire Pressure Monitoring System (TPMS) checks the air pressure inside your tires. Direct TPMS uses sensors in each tire to measure this pressure. Indirect TPMS relies on the antilock brake system (ABS) to track wheel speed, which changes with low tire pressure.

If a tire's pressure drops below 25% of what the manufacturer recommends, the TPMS light turns on. A flashing light signals a malfunction like dead sensor batteries or damage. This system helps prevent flat tires and improves gas mileage by keeping pressures correct.


Green Range Rover driving on a wet, winding road. Autumn foliage surrounds, under a cloudy sky. The mood is adventurous yet serene.

Importance of Maintaining Proper Tire Pressure

Correct tire pressure improves safety on the road. Properly inflated tires reduce the risk of blowouts and give better handling. Under-inflated tires make driving less stable and increase stopping distances.


This can lead to accidents, especially in wet or icy conditions common in states like Indiana or Ohio during winter.


Keeping your tires at the right pressure saves money, too. Tires wear evenly when pressure is correct, extending their life and cutting replacement costs. It also increases fuel mileage by lowering rolling resistance, which helps you spend less at gas stations around Cincinnati or Harrison, Ohio.


Regular checks prevent uneven tire wear and help avoid costly repairs later on.


A tire is split: left icy blue, right fiery orange. Text reads "CONTRACTION: LOW TEMP." and "EXPANSION: HIGH TEMP." Backgrounds contrast.

Why Does Tire Pressure Fluctuate?

Tire pressure changes because air expands and contracts with temperature shifts. This can affect your tires, especially during seasonal weather swings in places like Ohio or Indiana.


Impact of Temperature Changes

Air pressure inside tires changes with temperature shifts. A 10°F drop can lower pressure by about 1 PSI, especially in Midwest areas like Ohio or Indiana. Colder nights cause air molecules to contract, reducing tire pressure levels.


Morning hours often show the lowest readings after tires sit overnight in cooler weather. Warmer temperatures, like a sunny afternoon in Kentucky or Indianapolis, make the air expand and increase pressure slightly.


Checking cold tire inflation pressure regularly is key during these swings.


Summer Heat and Air Expansion

Summer heat impacts tire pressure. Pavement temperatures can rise above 130°F under direct sunlight. This extreme heat causes air inside the tires to expand, raising pressure significantly.


Tire inflation may increase during driving due to rising temperatures in the air cavity.

Tire performance and safety rely on proper monitoring because overinflation from expanded air could damage tire sidewalls or reduce grip on hot pavement. Use a reliable tire-pressure gauge regularly, especially during warmer months in Ohio or Indiana summers, for accurate readings before your next trip.

Blue SUV idling on snowy street in front of "The Bluebird Diner" at dusk. Brick buildings, glowing windows, and streetlights in view.

Cold Weather and Air Contraction

Cold air makes the air in your tires contract. This lowers tire pressure, often triggering the TPMS warning light. A 10°F drop can decrease pressure by 1 to 2 PSI in each tire.


In winter, this is common around places like Harrison, Ohio, or Milan, Indiana, where temperatures shift quickly. Low pressure increases wear and reduces fuel efficiency. Use a

reliable measuring device like a tire pressure gauge to check levels regularly during cold spells.


Driver inside a car with a Porsche emblem, steering through a rainy city at dusk. Raindrops on windows, dashboard gauges visible.

Common Reasons Your TPMS Light Stays On

Your TPMS light might stay on due to changes in the weather or issues with tire pressure. Faulty sensors can also cause the warning to appear.


Seasonal Temperature Swings

Seasonal changes in Ohio and Indiana can cause tire pressure to fluctuate. Cold weather contracts the air inside tires, lowering the pressure. This often triggers the TPMS warning light during fall or winter mornings.


As temperatures warm up by afternoon, the air expands slightly, but not always enough to turn off the light.


Summer heat also impacts tire pressure. Hotter days expand the air faster, sometimes confusing sensitive TPMS sensors. Even overnight temperature drops or driving in higher altitudes can affect readings.


Regularly check your tire pressure during seasonal shifts to stay safe on the road near Harrison or Milan, Indiana.


Gloved hand points at a car's tire pressure label on a metallic surface, detailing recommended psi: 36 front, 42 rear.

Pressure Below the Recommended Threshold

Tire pressure can drop 25% below the manufacturer’s recommendation, triggering the TPMS warning light. Low tire pressure affects fuel efficiency and increases uneven tire wear. Cold weather in places like Harrison, Ohio, or Aurora, Indiana, often causes air contraction inside tires.


Check the sticker on your driver’s door for your vehicle's recommended pressure level. Use a manual gauge to measure each tire's PSI and adjust as needed. Ignoring low-pressure warnings can harm miles per gallon performance and lead to costly repairs later.


Sensor Malfunctions or Wear

Over time, TPMS sensors can fail or wear out. These sensors usually last 5 to 10 years before the batteries die. A dead battery can trigger a false warning on your dashboard.

Rough roads or impacts may damage the sensors inside the wheels. Improper programming after new tire installations can also keep the light on in error. If you drive often during cold winters in Harrison, Ohio, harsh conditions might also cause quicker sensor wear.


A person crouches next to a gray SUV with open doors by a coastal road. Overcast sky and ocean in the background create a serene mood.

What to Do When Your TPMS Light Is On

Check your tire pressure, inspect for leaks, and adjust as needed to ensure safe driving.


Check Tire Pressure Manually

Pull over and use a quality tire pressure gauge to check your tires. Compare the reading with the manufacturer’s recommended specs on your owner's manual or doorjamb sticker.

Low pressure can activate the TPMS warning light in cold weather, like winters in Harrison, Ohio or Milan, Indiana. Regular checks help catch issues early before further damage occurs.


Refill or Deflate Tires as Needed

Add air with a compressor if the tire pressure is low. Use a digital gauge to match the recommended PSI in your vehicle’s manual or door frame. Drive a few miles after adjusting and restarting your car to reset the TPMS warning light.


If tires are overinflated, release air slowly until they reach proper levels. Overfilled tires can cause uneven wear and reduce grip on winter roads. Some tire-pressure monitoring systems may need manual resets even after adjustments.

Close-up of a tire with a shiny nail embedded in the tread. Dark road in the background with soft lighting highlighting the textured rubber.

Inspect for Leaks or Damage

Look closely at each tire for punctures, cracks, or cuts. Pay special attention if a tire appears deflated even after adding air. Small objects like nails or screws can cause slow leaks.

If the TPMS light stays on despite adjusting pressure, there may be hidden damage.


Check your tires and valves for wear as they age. Vehicles nearing ten years old might have aging sensors that need inspection, too. Visit an auto repair shop near Harrison, Ohio, or Milan, Indiana, if unsure about leaks or sensor issues to avoid bigger problems later.


Can the TPMS Light Turn Off on Its Own?

The TPMS light might turn off if the tire pressure adjusts naturally with temperature. If it stays on, that could indicate a deeper issue needing attention.


Temporary Pressure Adjustments

Tire pressure can go up or down due to temperature. If it warms up in Ohio, the air in your tires expands. This could temporarily fix low-pressure issues and turn off the TPMS warning light after driving for a bit.


Newly installed tires might trigger the system too. Spare tires, if underinflated, can also activate the warning light. Regular checks help avoid these problems.


Mechanic inspects a silver car on a lift in a modern garage. Tools on the wall, screen displays "German Automotive Excellence."

When to Seek Professional Help

Seek help if your TPMS light stays on after adjusting pressure. A faulty sensor might need repair.


Ignoring the light can lead to safety risks like blowouts or poor handling. Visit a shop in Aurora, Indiana for expert tools and service.


Move to “Preventing Future TPMS Issues” next!


Preventing Future TPMS Issues

Regularly check your tire pressure, especially during weather changes. Schedule routine inspections to spot potential problems early.


Regular Maintenance Tips

Check your tire pressure monthly, especially in cold weather. Use a reliable gauge to ensure levels match the vehicle's recommendation. Low pressure can trigger the TPMS warning and affect safety.


Inspect TPMS sensors during tire replacement or rotation. Replace weak batteries in older vehicles to avoid sensor failure after service. Activate and program new sensors with a TPMS tool for proper function.


Seasonal checks prevent issues and keep tires safe year-round.


Seasonal tire checks are just as vital as regular maintenance.


Importance of Seasonal Tire Checks

Seasonal tire checks are vital, especially during cold weather. Tire pressure drops by 1–2 PSI for every 10°F decrease in temperature. Low pressure can lead to uneven tire wear and reduce the lifespan of your tires.


Driving with underinflated tires also increases the risk of accidents in icy or snowy conditions.

Winter tire maintenance ensures safety on Ohio roads and beyond. Ignoring the TPMS warning light in winter is dangerous. Regularly checking your tire pressure helps prevent issues caused by air contraction or leaks.


Keep your vehicle running smoothly by staying proactive through each season’s changes.


Exploring Your Options: New and Used Inventory for Upgrades

Upgrade your ride at Tom Tepe Autocenter in Milan, Indiana. Choose from new Chevrolet models like the Silverado 1500, Equinox, and Traverse for reliable performance. These vehicles pair well with Ohio winters and cold-weather tire needs.


Over 200 used vehicles are available across three locations in Indiana and Ohio. Find affordable options like small cars, family SUVs, or used trucks for commuting or heavy-duty work.


Financing is simple with online applications to save time. Customers from Aurora, Lawrenceburg, and Cincinnati can also benefit from our Chevrolet service department for maintenance after purchase.

Red truck and black SUV displayed in a modern showroom with wooden ceiling. Glass walls, screens, and brown chairs add a sleek ambiance.

Conclusion

Your tire pressure light stays on because of changes in temperature, pressure issues, or sensor problems. Even warm days can cause shifts in tire air levels due to heat expansion or earlier cold contractions.


Check your tires often and make adjustments as needed. Proper maintenance keeps you safe and helps your tires last longer. If the issue persists, seek help from a trusted technician near Aurora, Indiana!


FAQs

1) Why is my tire pressure light still on even though it warmed up in Ohio?Even if yesterday felt warmer, your tires may still be below the recommended PSI—especially if the pressure dropped during colder overnight temps. A small warm-up doesn’t always add enough air pressure to cross the TPMS threshold. The best move is to check all four tires with a manual gauge and match the PSI listed on your door jamb sticker.


2) How much does temperature really change tire pressure in winter?Temperature swings change tire pressure fast. When the temperature drops, the air inside your tires contracts and PSI goes down—often enough to trigger your TPMS light during Ohio and Indiana cold snaps. If mornings are cold and afternoons warm, you can see the light come on and off until pressures are set correctly.


3) Should I just add air until the TPMS light turns off?Don’t “guess-fill.” Add air until each tire matches the manufacturer’s recommended PSI (found on your driver’s door jamb—not the number printed on the tire). Then drive a few miles. Some vehicles need a short drive cycle before the light resets, and a few may require a manual reset procedure.


4) When does a TPMS light mean something more serious than cold weather?If the TPMS light stays on after you’ve set the correct PSI, you could be dealing with a slow leak (nail, puncture, valve issue), a damaged sensor, or a sensor battery that’s wearing out. A flashing TPMS light often points to a system fault. If you’re refilling more than once or twice a month, it’s time to have it inspected.


5) Can Tom Tepe Autocenter & Car Country check this for me, and what will you look for?Yes. Our team can confirm your PSI is set correctly, check for slow leaks, inspect valve stems, and evaluate TPMS sensors if the light keeps coming back. If you’re commuting around Milan, Aurora, or Harrison—or driving between Ohio and Indiana in winter—getting ahead of tire pressure issues can prevent uneven wear, poor handling, and surprise flats.

Harry Tepe, Owner and Dealer Principal, Tom Tepe Autocenter


Harry Tepe is a seasoned automotive expert and the owner of Tom Tepe Autocenter, a leading vehicle dealership serving the Midwest states of Ohio, Indiana, and Kentucky. With a lifelong passion for automobiles.


Over the years, Harry worked his way up through various roles, absorbing valuable insights into sales management and dealership operations until he became the youngest GM Dealer Principal and owner of Tom Tepe Autocenter, expanding the business to include multiple locations and a standalone reconditioning center.


Under Harry's leadership, Tom Tepe Autocenter and Car Country in Aurora and Harrison, Ohio, have grown exponentially, selling over 2000 vehicles annually and generating over $50 million in revenue. His active involvement in the industry is further evidenced by his participation in the NADA 20 Group and his influential role on the Board of Directors for the Indiana Auto Dealers Association, even serving as its President in 2016.


Harry's journey embodies the essence of expertise, authority, and trustworthiness. His insights and experiences are not just stories of personal growth and business success; they are testaments to his deep understanding of and commitment to the automotive industry.

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